CN102678677B - A kind of hydraulic control type test method for hydraulic balance valve - Google Patents
A kind of hydraulic control type test method for hydraulic balance valve Download PDFInfo
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- CN102678677B CN102678677B CN201210149904.1A CN201210149904A CN102678677B CN 102678677 B CN102678677 B CN 102678677B CN 201210149904 A CN201210149904 A CN 201210149904A CN 102678677 B CN102678677 B CN 102678677B
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- hydraulic fluid
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- hydraulically balanced
- flow resistance
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Abstract
The invention discloses a kind of hydraulic control type test method for hydraulic balance valve, first by the safety pressure value of adjustment, locked secure valve, draw the forward flow resistance of hydraulically balanced valve single channel and reverse flow resistance by single channel flow resistance test (forward channel, backward channel) again, the mode finally by short circuit hydraulic fluid port calculates the flow resistance of whole equilibrium valve.Adopt method of the present invention can obtain the basic parameter (flow resistance etc. as safety valve pressure, single channel forward flow resistance, oppositely flow resistance, whole valve) of hyraulic controlled type hydraulically balanced valve, for equilibrium valve inspection, check and accept the foundation providing some important.
Description
Technical field
The invention belongs to hydraulic pressure drive control system technical field, in particular to a kind of hydraulic control type test method for hydraulic balance valve, the invention provides a kind of working principle of hyraulic controlled type hydraulically balanced valve and propose this equilibrium valve based on this producing the method checking and pay and carry out in reinspection testing, having increased substantially the conformity of production and payment.
Background technique
In the development of certain type product hydraulic system, in heavy duty load-bearing loop, a few road, all have employed hydraulically balanced valve, in order to improve the impact resistance in each system circuit, be convenient to keeping system traveling comfort.But in actual use, the conformity of each equilibrium valve and interchangeability poor.Through repeatedly investigating, discovery is because hydraulically balanced valve does not have unified test standard and method in production testing and submitted for test process, causes the test of product insufficient, can not ensure conformity and the interchangeability of hydraulically balanced valve.
For guaranteeing the consistency problem after product payment, according to the performance characteristics of product, proposing a kind of hyraulic controlled type hydraulically balanced valve producing the method checking and pay and carry out in reinspection testing, conformity and the interchangeability of production and payment can have been increased substantially.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of hydraulic control type test method for hydraulic balance valve, solving hydraulically balanced valve conformity and the poor problem of interchangeability.
The present invention is achieved by following technical solution.
The test method of a kind of hyraulic controlled type hydraulically balanced valve of the present invention, first by the safety pressure value of adjustment, locked secure valve, draw the forward flow resistance of hydraulically balanced valve single channel and reverse flow resistance by the test of single channel flow resistance again, the mode finally by short circuit hydraulic fluid port calculates the flow resistance of whole equilibrium valve.
Compare with function with prior art, the technique effect that the present invention reaches is: 1. adopt test method of the present invention can obtain the basic parameter (flow resistance etc. as safety valve pressure, single channel forward flow resistance, oppositely flow resistance, whole valve) of hyraulic controlled type hydraulically balanced valve, for equilibrium valve inspection, check and accept the foundation providing some important; 2. the equilibrium valve using test method of the present invention to check and accept can ensure the coherence request after product payment; 3. test method of the present invention is adopted to substantially increase interchangeability between equilibrium valve.
Accompanying drawing explanation
Fig. 1 is equilibrium valve fundamental diagram of the present invention;
Fig. 2 is that equilibrium valve safety valve of the present invention regulates pipeline catenation principle figure;
Fig. 3 is equilibrium valve single channel forward flow resistance developmental tube road catenation principle figure of the present invention;
Fig. 4 is equilibrium valve single channel of the present invention reverse flow resistance developmental tube road catenation principle figure;
Fig. 5 is equilibrium valve flow resistance of the present invention test pipeline catenation principle figure;
Wherein: 1-safety valve; 2-one-way valve; 3-back pressure regulating valve.
Embodiment
Technological scheme of the present invention is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1, hyraulic controlled type hydraulically balanced valve of the present invention, form primarily of safety valve 1, one-way valve 2, back pressure regulating valve 3, the invention still further relates to a kind of test method of hyraulic controlled type hydraulically balanced valve, first by the safety pressure value regulated, locked secure valve obtains safety valve, draw the forward flow resistance of hydraulically balanced valve single channel and reverse flow resistance by single channel flow resistance test (forward channel, backward channel) again, the mode finally by short circuit hydraulic fluid port calculates the flow resistance of whole equilibrium valve.
Hyraulic controlled type hydraulically balanced valve working principle of the present invention: as shown in fig. 1, safety valve 1 is integrated on hydraulically balanced valve, usually sets up by during delivery test, can not arbitrarily regulate; Back pressure regulating valve 3 is also be integrated on hydraulically balanced valve, can regulate, to meet applying working condition requirement according to operating load ability is corresponding within the specific limits.During work, fluid enters hydraulically balanced valve through A1 hydraulic fluid port, flow through A2 hydraulic fluid port, working hydraulic pressure element, B2 hydraulic fluid port, B1 hydraulic fluid port flow back to hydraulic reservoir, otherwise work fluid enters hydraulically balanced valve through B1 hydraulic fluid port, flow through B2 hydraulic fluid port, working hydraulic pressure element, A2 hydraulic fluid port, A1 hydraulic fluid port flow back to hydraulic reservoir.
The process of adjustment, locked secure valve safety pressure value: as shown in Figure 2, A2 and the B2 hydraulic fluid port plug screw of hydraulically balanced valve is blocked, hydraulic fluid port A1 (or B1) joint test platform pressure oil P, hydraulic fluid port B1 (or A1) takes back test stand fuel tank, the adjusting knob of regulation safety valve af1 (or af2), the safety pressure value of set pressure for safety valve value to hydraulically balanced valve work system is read, the adjusting knob of locked secure valve af1 (or af2) from pressure gauge P1; Under normal circumstances, set pressure for safety valve value is worth higher 10% ~ 30% than the rated working pressure of hydraulically balanced valve, to ensure that hydraulically balanced valve is unlikely unloading when normally working.
Forward channel A1 → A2 (or channel B 1 → B2) flow resistance experiment work principle: as shown in Figure 3, hydraulic fluid port A1 (or B1) joint test platform pressure oil P, logical oily flow Q is the rated flow of hydraulically balanced valve, hydraulic fluid port A2 (or B2) joint test platform fuel tank, Bonding pressure table P1 and P2 on the pipeline that the two ends of hydraulically balanced valve distance hydraulically balanced valve is not more than 200mm.Then the forward flow resistance of hydraulically balanced valve single channel is: Δ P=P
1-P
2, under normal circumstances, the forward channel of hydraulically balanced valve is equivalent to an independently one-way valve, and with reference to the cracking pressure of one-way valve, forward single channel flow resistance should be not more than (0.5 ~ 0.3) MPa.
Backward channel A2 → A1 (or channel B 2 → B1) flow resistance experiment work principle: as shown in Figure 4, for hydraulically balanced valve A2 → A1 passage, B2 hydraulic fluid port is blocked with plug screw, hydraulic fluid port A2 and hydraulic fluid port B1 joint test platform pressure oil P, logical oily flow Q is the rated flow of hydraulically balanced valve, hydraulic fluid port A1 joint test platform fuel tank, Bonding pressure table P on the pipeline that hydraulic fluid port A1, hydraulic fluid port A2 and hydraulic fluid port B1 distance hydraulically balanced valve is not more than 200mm
1, P
2and P
3; For hydraulically balanced valve B2 → B1 passage, A2 hydraulic fluid port is blocked with plug screw, hydraulic fluid port B2 and hydraulic fluid port A1 joint test platform pressure oil P, logical oily flow Q is the rated flow of hydraulically balanced valve, hydraulic fluid port B1 joint test platform fuel tank, Bonding pressure table P on the pipeline that hydraulic fluid port B1, hydraulic fluid port B2 and hydraulic fluid port A1 distance hydraulically balanced valve is not more than 200mm
1, P
2and P
3, then the reverse flow resistance of hydraulically balanced valve single channel is: P=P
1-P
2.
The flow resistance experiment work principle of whole valve: as shown in Figure 5, by the hydraulic fluid port A2 of hydraulically balanced valve and the direct short circuit of hydraulic fluid port B2 (duct length is short as far as possible), hydraulic fluid port A1 (or B1) joint test platform pressure oil P, logical oily flow Q is the rated flow of hydraulically balanced valve, hydraulic fluid port B1 (or A1) joint test platform fuel tank, is not more than the position Bonding pressure table P of 200mm apart from hydraulically balanced valve at hydraulic fluid port A1, hydraulic fluid port B1 connecting tube
1and P
2, then the flow resistance of hydraulically balanced valve is: Δ P=P
1-P
2.
Claims (1)
1. a hydraulic control type test method for hydraulic balance valve, it is characterized in that: described equilibrium valve test method is first by the safety pressure value of adjustment, locked secure valve, tested by single channel flow resistance again, forward channel and backward channel, draw the forward flow resistance of hydraulically balanced valve single channel and reverse flow resistance, the mode finally by short circuit hydraulic fluid port calculates the flow resistance of whole equilibrium valve;
The method of work of the safety pressure value of described adjustment, locked secure valve is: blocked by A2 and the B2 hydraulic fluid port plug screw of hydraulically balanced valve, hydraulic fluid port A1 or B1 joint test platform pressure oil P, hydraulic fluid port B1 or A1 takes back test stand fuel tank, the adjusting knob of regulation safety valve af1 or af2, the safety pressure value of set pressure for safety valve value to hydraulically balanced valve work system is read, the adjusting knob of locked secure valve af1 or af2 from pressure gauge P1;
The flow resistance experiment work method of described forward channel is: hydraulic fluid port A1 or B1 joint test platform pressure oil P, logical oily flow Q is the rated flow of hydraulically balanced valve, hydraulic fluid port A2 or B2 joint test platform fuel tank, Bonding pressure table P1 and P2 on the pipeline that the two ends of hydraulically balanced valve distance hydraulically balanced valve is not more than 200mm, then the forward flow resistance of hydraulically balanced valve single channel is: △ P=P
1-P
2;
The flow resistance experiment work method of described backward channel is: for hydraulically balanced valve A2 → A1 passage, B2 hydraulic fluid port is blocked with plug screw, hydraulic fluid port A2 and hydraulic fluid port B1 joint test platform pressure oil P, logical oily flow Q is the rated flow of hydraulically balanced valve, hydraulic fluid port A1 joint test platform fuel tank, Bonding pressure table P on the pipeline that hydraulic fluid port A1, hydraulic fluid port A2 and hydraulic fluid port B1 distance hydraulically balanced valve is not more than 200mm
1, P
2and P
3; For hydraulically balanced valve B2 → B1 passage, A2 hydraulic fluid port is blocked with plug screw, hydraulic fluid port B2 and hydraulic fluid port A1 joint test platform pressure oil P, logical oily flow Q is the rated flow of hydraulically balanced valve, hydraulic fluid port B1 joint test platform fuel tank, Bonding pressure table P on the pipeline that hydraulic fluid port B1, hydraulic fluid port B2 and hydraulic fluid port A1 distance hydraulically balanced valve is not more than 200mm
1, P
2and P
3, then the reverse flow resistance of hydraulically balanced valve single channel is: P=P
1-P
2;
The flow resistance experiment work method of described whole equilibrium valve is: by the hydraulic fluid port A2 of hydraulically balanced valve and the direct short circuit of hydraulic fluid port B2, hydraulic fluid port A1 or B1 joint test platform pressure oil P, logical oily flow Q is the rated flow of hydraulically balanced valve, hydraulic fluid port B1 or A1 joint test platform fuel tank, be not more than the position Bonding pressure table P of 200mm apart from hydraulically balanced valve at hydraulic fluid port A1, hydraulic fluid port B1 connecting tube
1and P
2, then the flow resistance of hydraulically balanced valve is: △ P=P
1-P
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210149904.1A CN102678677B (en) | 2012-05-15 | 2012-05-15 | A kind of hydraulic control type test method for hydraulic balance valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210149904.1A CN102678677B (en) | 2012-05-15 | 2012-05-15 | A kind of hydraulic control type test method for hydraulic balance valve |
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| CN102678677A CN102678677A (en) | 2012-09-19 |
| CN102678677B true CN102678677B (en) | 2015-11-11 |
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| CN114439815B (en) * | 2022-01-25 | 2024-05-28 | 北京三一智造科技有限公司 | Test system and test host for rotary buffer valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699080A (en) * | 2009-10-28 | 2010-04-28 | 武汉华远控制技术有限公司 | Hydraulic motor controller |
| CN101738312A (en) * | 2010-01-18 | 2010-06-16 | 北京艾迪西暖通科技有限公司 | Test platform of balance valve |
| CN201697643U (en) * | 2010-05-10 | 2011-01-05 | 玉环县清港液压机械厂 | Testing machine for flow rate of balance valve |
| CN201818576U (en) * | 2010-10-18 | 2011-05-04 | 印辉 | Two-stage pressure rotary cushion valve |
-
2012
- 2012-05-15 CN CN201210149904.1A patent/CN102678677B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699080A (en) * | 2009-10-28 | 2010-04-28 | 武汉华远控制技术有限公司 | Hydraulic motor controller |
| CN101738312A (en) * | 2010-01-18 | 2010-06-16 | 北京艾迪西暖通科技有限公司 | Test platform of balance valve |
| CN201697643U (en) * | 2010-05-10 | 2011-01-05 | 玉环县清港液压机械厂 | Testing machine for flow rate of balance valve |
| CN201818576U (en) * | 2010-10-18 | 2011-05-04 | 印辉 | Two-stage pressure rotary cushion valve |
Non-Patent Citations (1)
| Title |
|---|
| 新型工程机械液压平衡阀的设计与试验研究;贺辉;《湖南大学硕士学位论文》;20031231;38-57 * |
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